Demuxer s16le [PCM signed 16-bit little-endian]:
    Common extensions: sw.
s16le demuxer AVOptions:
  -sample_rate       <int>        .D.......  (from 0 to INT_MAX) (default 44100)
  -channels          <int>        .D.......  (from 0 to INT_MAX) (default 1)


